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Mathematics 14 Online
OpenStudy (adamk):

Help with #11 http://i.imgur.com/ZC13xMM.jpg

OpenStudy (anonymous):

We are given that the length of arc BD = length BC. Let AB=r Area of sector ABD = [(BD)/(2πr)]*(πr^2)=[(BD)*r]/2. Area of triangle ABC=[(BC)*r]/2, but BD= BC, so area of triangle ABC=[(BD)*r]/2.

OpenStudy (adamk):

@seth61 Thank you! Very well explained!

OpenStudy (anonymous):

Np:)

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